Hulk

Bruce Banner was born to Dr. Brian Banner and his wife Rebecca. Brian was an alcoholic father whose jealousy grew for Bruce as Rebecca shifted her focus from Brian to Bruce,Further, Brian believed that his radiation work had altered his DNA and given him a mutant son. Brian then abused Bruce and finally murdered Rebecca, then was placed in a mental hospital. After that, Bruce was raised by his aunt and father's sister, Susan Banner, who understood his great pain and rage over his childhood sufferings thanks to his crazed father, and raised him with love and care as if he were her own child.

Eventually when he became an adult he was a genius in nuclear physics, but without the proper funding, he was forced to go to the Desert State University. While performing a Gamma Bomb test until he saw a random civilian, so he asked his assistant Igor to stop the bomb, however because Igor was with the Soviet Union, he refused. Bruce was able to find a place to protect the bystander however he wasn't able to get back to his former location when the Gamma Bomb went off.

Somehow, Bruce survived the explosion thanks to a genetic factor in his body. This factor allowed Bruce to absorb the gamma radiation and after that night, he would frequently transform into the Green Goliath, also known as the Hulk.